Electronic properties of the degenerate Hubbard Model : A dynamical mean field approach

Details Electronic properties of the degenerate Hubbard Model : A dynamical mean field approach Electronic properties of the degenerate Hubbard Model : A dynamical mean field approach

2000-09-18

arxiv.org/abs/cond-mat/0009253v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 5 figures

Scientific paper

We have investigated electronic properties of the degenerate multi-orbital Hubbard model, in the limit of large spatial dimension. A new local model, including a doubly degenerate strongly correlated site has been introduced and solved in the framework of the non-crossing approximation (NCA). Mott-Hubbard transitions have been examined in details, including the calculation of Coulomb repulsion critical values and electronic densities of states for any regime of parameters.

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